Lamp



FIG. 1 is a perspective top front left view of a lamp, showing my new design;

FIG. 2 is a perspective top rear right view thereof;

FIG. 3 is a right elevation view thereof;

FIG. 4 is a left elevation view thereof; and,

FIG. 5 is a bottom plan view thereof.

Portions of the lamp shown in broken lines form no part of the claimed design. 

CLAIM The ornamental design for a lamp, as shown and described. 